To be honest, I think the guy learned more than most electrical contractors actually know or care to check when it comes to the EVSE. I certainly would object i

To be honest, I think the guy learned more than most electrical contractors actually know or care to check when it comes to the EVSE. I certainly would object if he is selling this or installing on other people's houses, but this looks actually acceptable for now. The longevity is a big question, since usually there's no easy way to check / test that with a singleton bespoke design/build, and that's sometimes what distinguishes the one-off vs mass manufactured stuff, albeit in both directions. Sometimes a bespoke design misses some subtle design choice and it breaks down sooner, but sometimes you can do a lot more careful handcrafting and "simple" over-engineering with a bespoke singleton to make things last even longer than mass produced stuff. I think the mechanical and the environmental aspects - condensation, thermal expansion, etc - are probably the biggest question mark here.